| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>offset-distance composition</title> |
| <link rel="author" title="Eric Willigers" href="mailto:ericwilligers@chromium.org"> |
| <link rel="help" href="https://drafts.fxtf.org/motion-1/#offset-distance-property"> |
| <meta name="assert" content="offset-distance supports animation."> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <body> |
| <script> |
| // TODO(ericwilligers) Support additive animation for path strings crbug.com/699308 |
| |
| // Ray paths compose. |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg sides)', |
| addFrom: 'ray(10deg sides)', |
| addTo: 'ray(20deg sides)', |
| }, [ |
| {at: -0.3, expect: 'ray(27deg sides)'}, |
| {at: 0, expect: 'ray(30deg sides)'}, |
| {at: 0.3, expect: 'ray(33deg sides)'}, |
| {at: 0.6, expect: 'ray(36deg sides)'}, |
| {at: 1, expect: 'ray(40deg sides)'}, |
| {at: 1.5, expect: 'ray(45deg sides)'}, |
| ]); |
| |
| // Ray paths without contain don't compose with underlying contain. |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg closest-corner contain)', |
| addFrom: 'ray(10deg closest-corner)', |
| addTo: 'ray(20deg closest-corner)', |
| }, [ |
| {at: -0.3, expect: 'ray(7deg closest-corner)'}, |
| {at: 0, expect: 'ray(10deg closest-corner)'}, |
| {at: 0.3, expect: 'ray(13deg closest-corner)'}, |
| {at: 0.6, expect: 'ray(16deg closest-corner)'}, |
| {at: 1, expect: 'ray(20deg closest-corner)'}, |
| {at: 1.5, expect: 'ray(25deg closest-corner)'}, |
| ]); |
| |
| // Ray paths don't compose when underlying has different size. |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg closest-side)', |
| addFrom: 'ray(10deg closest-corner)', |
| addTo: 'ray(20deg closest-corner)', |
| }, [ |
| {at: -0.3, expect: 'ray(7deg closest-corner)'}, |
| {at: 0, expect: 'ray(10deg closest-corner)'}, |
| {at: 0.3, expect: 'ray(13deg closest-corner)'}, |
| {at: 0.6, expect: 'ray(16deg closest-corner)'}, |
| {at: 1, expect: 'ray(20deg closest-corner)'}, |
| {at: 1.5, expect: 'ray(25deg closest-corner)'}, |
| ]); |
| |
| // Ray contain paths compose with underlying contain. |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg farthest-side contain)', |
| addFrom: 'ray(190deg farthest-side contain)', |
| addTo: 'ray(20deg farthest-side contain)', |
| }, [ |
| {at: -0.3, expect: 'ray(261deg farthest-side contain)'}, |
| {at: 0, expect: 'ray(210deg farthest-side contain)'}, |
| {at: 0.3, expect: 'ray(159deg farthest-side contain)'}, |
| {at: 0.6, expect: 'ray(108deg farthest-side contain)'}, |
| {at: 1, expect: 'ray(40deg farthest-side contain)'}, |
| {at: 1.5, expect: 'ray(-45deg farthest-side contain)'}, |
| ]); |
| |
| // When we can't interpolate, we can't compose. |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg farthest-corner)', |
| addFrom: 'ray(190deg farthest-corner contain)', |
| addTo: 'ray(20deg farthest-corner)', |
| }, [ |
| {at: -0.3, expect: 'ray(190deg farthest-corner contain)'}, |
| {at: 0, expect: 'ray(190deg farthest-corner contain)'}, |
| {at: 0.3, expect: 'ray(190deg farthest-corner contain)'}, |
| {at: 0.6, expect: 'ray(40deg farthest-corner)'}, |
| {at: 1, expect: 'ray(40deg farthest-corner)'}, |
| {at: 1.5, expect: 'ray(40deg farthest-corner)'}, |
| ]); |
| |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg sides)', |
| replaceFrom: 'ray(190deg sides contain)', |
| addTo: 'ray(20deg sides)', |
| }, [ |
| {at: -0.3, expect: 'ray(190deg sides contain)'}, |
| {at: 0, expect: 'ray(190deg sides contain)'}, |
| {at: 0.3, expect: 'ray(190deg sides contain)'}, |
| {at: 0.6, expect: 'ray(40deg sides)'}, |
| {at: 1, expect: 'ray(40deg sides)'}, |
| {at: 1.5, expect: 'ray(40deg sides)'}, |
| ]); |
| |
| // Ray paths compose with underlying. |
| test_composition({ |
| property: 'offset-path', |
| underlying: 'ray(20deg closest-side)', |
| addFrom: 'ray(10deg closest-side)', |
| replaceTo: 'ray(10deg closest-side)', |
| }, [ |
| {at: -0.3, expect: 'ray(36deg closest-side)'}, |
| {at: 0, expect: 'ray(30deg closest-side)'}, |
| {at: 0.3, expect: 'ray(24deg closest-side)'}, |
| {at: 0.6, expect: 'ray(18deg closest-side)'}, |
| {at: 1, expect: 'ray(10deg closest-side)'}, |
| {at: 1.5, expect: 'ray(0deg closest-side)'}, |
| ]); |
| </script> |
| </body> |
